Tunability of electronic band gaps from semiconducting to metallic states via tailoring Zn ions in MOFs with Co ions

Literature Information

Publication Date 2008-12-09
DOI 10.1039/B816668D
Impact Factor 3.676
Authors

Jung Hoon Choi, Yoon Jeong Choi, Jung Woo Lee, Weon Ho Shin, Jeung Ku Kang


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Abstract

Metal–organic frameworks (MOFs) have recently received much attention as promising candidates for gas storage, chemical separation, and heterogeneous catalysis. However, the applicability of MOFs remains limited due to their relatively large band gaps. Here, on the basis of first-principles theory study, it is demonstrated that this problem could be overcome by tailoring Zn2+ ions in MOFs with Co2+ ions while maintaining the same organic linkers. Density of states and molecular orbitals for MOFs with two elements, Zn and Co ions, show that band gaps ranging from semiconducting to metallic states can be obtained by tailoring the overlaps between the Co and Zn d-orbitals and the O and C p-orbitals.

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Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
CiteScore: 5.5
Self-citation Rate: 10.3%
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Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.

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